Bought two of these. The first one worked for a couple of days then developed a fault so sent it back for a replacement. Second one arrived plugged it in and it wouldn't work at all so sent that one back for a refund.

These are some of best sounding headphones I've ever had, nice & comfortable, a nice balance of bass & treble alround great sound for just over £10 you can't go wrong. These sound better than lot of expensive designer headphones I've tried.